High chair



- SeptQS, 1944. H. w. SHELDRICK HIGH CHAIR Filed March 19, 1942 Patented Sept. 5, 1944 UNITED STATES PATENT OFFICE HIGH CHAIR Henry W. Sheldrick, Gardner, Mass, assignor to Collier-Keyworth Company, Gardner, Mass; a corporation of Massachusetts 7 Application March 19, 1942, Serial No. 435,277

2 Claims.

construction and will be apparent from a consideration of the following description and accompanying drawing, wherein Fig. 1 is a perspective View of a high chair embodying the present invention;

Fig. 2 is a side elevation of the top part of the chair;

Fig. 3 is a top plan view of the chair;

Fig, 4 is an enlarged side elevation of the slotted I bracket constituting a part of the detachable interlocking means;

Fig. 5 is an enlarged plan view showing the detachable interlocking means for connecting the tray and side members;

Fig. 6 is an enlarged sectional detail showing the manner in which the tray is aflixed to the arms; and

indicated at I4 in Fig. 5. The flattened end of each arm is formed with a circular opening I5 which loosely receives a detachable fastening element comprising a threaded shank I6 (Fig. 7), the inner end of which terminates in a rounded head I I defining an annular shoulder I8. The opposite end of the shank |6 carries a lock nut within a cage or, holder formed integral with hand wheel 2|, the construction and arrangement of parts being such that the hand wheel 2| may be manipulated from one angular position to another, as indicated by the solid and broken lines of Fig. 5. In order to prevent the removal of the hand wheel 2 I, the outer end of the fastening element l6, after assembling the parts, may be flattened slightly on each side, as by the use of suitable tools, thereby forming two wings 22,

' as shown in Fig. 7.

Fig. 7 is an enlarged detail of a preferred form of fastening element.

In accordance with the present invention the high chair may be of conventional construction, embodying the usual seat, back and side members, and a tray having rearwardly projecting arms which extend along and outwardly of the sides, each arm carrying one element of a detachable interlocking fastening device by means of which the tray is supported for movement toward and away from the back and locked in any desired position of adjustment.

In the embodiment herein shown the high chair comprises a seat I, back 2, sides 3 and 4, tray 5, and the usual supporting structure 6, all of which may be of, conventional design and construction. The front or outer edge of the tray 5 is preferably grooved and provided with a bow-shaped metal tubing I0, the ends of which project rearwardly to provide arms I l and I2, as shown in Figs. 1 to 3, it being noted that the intermediate portion of the tubing I0 not only provides a substantial reinforcement of the front edge of the tray, but also a beaded edge which enhances the appearance of the structure. I

The arms II and I2 extend along the sides 3 and 4 and the end of each arm is flattened, as

Each side member is provided with a generally U-shaped bracket 25 (Fig. 4) having a body portion 26 integral with inwardly directed legs 21 and 28 formed with feet 29 and 30 by means of which the bracket is rigidly secured to a side member. The body portion 26 is formed with a horizontally extending elongated keyhole slot 3|, the enlarged part 32 of which is located at the curved junction of the body portion 26 and rear leg 21. The width of the slot 3| is such as to receive the shank H; of the fastening element 'to provide a loose sliding fit with the marginal portions of the slot being engageable with the annular shoulder I8 of the fastening element; and the size and shape of the enlarged opening 32 is such as to permit the headed end I! to pass therethrough only when the fastening element is held at a predetermined angle, shown by the full lines of Fig. 5, but preventing the passage of the headed end when the fastening element is disposed in all other positions.

With this construction and arrangement the elements I6, 26 pivotally support the tray arms andpermit the tray to be moved toward and away from the back 2 and adjusted to any desired position, as indicated by the full and broken lines of Fig. 3. The tray may be locked in any position of adjustment by the hand wheels 2| which cooperate with the fastening elements I6 to clamp theflattened ends I I of the arms against the body portions 26 of the brackets, and when thus locked the tray is firmly held against sliding movement, the usual strap 35 (Fig. 1) being availed of to prevent or restrict pivotal movement of the tray. When or if the hand wheels 2| are loosened, the tray may be slid rearwardly until the shank I6 abuts the end of the slot, but

due to the construction and arrangement of the headed end H and the enlarged opening 32, there is no danger of the fastening element accidentally becoming disengaged from the bracket.

In order to effect disengagement of the parts, each hand wheel 2| must be loosened and then swung from its normal position, indicated by the dot and dash lines of Fig. 5, forwardly to a predetermined angular position, shown by the full lines of .Fig. 5, in which position the headed ends I! may be withdrawn through the enlarged opening 32. provide detachable interlocking parts by means of which the tray 5 may not only be locked in any desired position of adjustment, but furthermore permit ready removal of the tray by a simple manipulation of the hand wheels 2|. Although such manipulation may be conveniently made by any person attending the child, it would be practically impossible for a child occupying the chair, accidentally or otherwise, to detach the parts.

While I have shown and described one desirable embodiment of the invention, it is to be understood that this disclosure is for the purpose of illustration, and that various changes in shape, proportion, and arrangement of parts, as well as the substitution of equivalent elements for those herein shown and described, may be made without departing from the spirit and scope of the invention as set forth in the appended claims.

I claim:

1. A high chair having a seat, back and side members, a tray having rearwardly projecting arms extending along and outwardly of said side members, and detachable means for adjustably connecting each of said arms to the adjacent side members comprising a bracket secured to each The bracket and fastening element thus side and formed with a substantially horizontally extending slot having an enlarged portion, a fastening element carried by each arm, said fastening element having a threaded shank which terminates in a headed end portion adapted, when swung to a predetermined angular position relative to said bracket, to pass through the enlarged portion of said slot to form with the slotted bracket a detachable interlocking connection by means of which said tray may be moved toward and away from said back, and a lock nut carried by said shank portion and adapted to bear against the marginal portions about said slot, thereby to hold said tray in any position of adjustment.

2. A high chair having a seat, back and side members, a tray having rearwardly projecting arms extending along and outwardly of said side members, and detachable means for adjustably connecting each of said arms to the adjacent side members comprising a generally U-shaped bracket secured to each side and having a body portion formed with a substantially horizontally extending keyhole slot, the enlarged end of which lies at the junction of one leg and the body portion, a fastening element carried by each arm, said fastenin-g element having a threaded shank terminating at one end in an enlarged head adapted, when in predetermined angular position, to be inserted through the enlarged end of said slot to form with the slotted bracket a detachable interlocking connection by means of which said tray may be moved toward and away from'said back, and a lock nut carried by the opposite end of said shank adapted to bear against the marginal portions about said slot, thereby to hold said tray in any position of adjustment.

HENRY W. SHELDRICK. 

